EP1059502A2 - Procédé pour revêtir la surface interne d'un tube de canon - Google Patents

Procédé pour revêtir la surface interne d'un tube de canon Download PDF

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Publication number
EP1059502A2
EP1059502A2 EP00107747A EP00107747A EP1059502A2 EP 1059502 A2 EP1059502 A2 EP 1059502A2 EP 00107747 A EP00107747 A EP 00107747A EP 00107747 A EP00107747 A EP 00107747A EP 1059502 A2 EP1059502 A2 EP 1059502A2
Authority
EP
European Patent Office
Prior art keywords
explosive
barrel
sheet
weapon barrel
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP00107747A
Other languages
German (de)
English (en)
Other versions
EP1059502A3 (fr
Inventor
Christian Warnecke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rheinmetall W&M GmbH
Original Assignee
Rheinmetall W&M GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rheinmetall W&M GmbH filed Critical Rheinmetall W&M GmbH
Publication of EP1059502A2 publication Critical patent/EP1059502A2/fr
Publication of EP1059502A3 publication Critical patent/EP1059502A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • F41A21/22—Barrels which have undergone surface treatment, e.g. phosphating

Definitions

  • the invention relates to a method for internal coating a weapon barrel, on the inner surface of which at least in a partial area at least one layer of a layer material is applied to avoid erosion.
  • a disadvantage of this known method is, inter alia, that the electrolytically deposited hard chrome layers of Do not withstand increased ammunition. To yourself resulting chrome breakouts gradually arise severe erosion.
  • the invention has for its object a method for coating the inside of a gun barrel to be specified with the layer materials that melt to prevent erosion can be applied to the inner surface of the gun barrel, wherein the coating applied to the weapon barrel in particular has a high adhesive strength should own.
  • the invention is essentially based on the idea of carrying out the inner coating of the respective weapon barrel by explosive plating.
  • a sheet or foil-shaped part consisting of the corresponding layer material is provided with an explosive and introduced into the weapon barrel in such a way that a gap-shaped space remains between the inner tube surface to be plated and the sheet-metal or foil-shaped part, so that after the explosive is detonated, this Layer material accelerated towards the pipe surface and with the material of the pipe surface ( cold "-) are welded.
  • a major advantage of the method according to the invention is that high-melting Materials such as niobium, molydane, tantalum, hafnium, vanadium, tungsten, zirconium or their alloys, in layer thicknesses from a few tenths of a millimeter to a few millimeters can be applied to the inner surface of the gun barrel without there is a melting metallurgical interaction between the two materials. There are therefore also connections between the weapon barrel and the respective layer material possible, which have no solubility among themselves, which form intermetallic phases at high temperatures or which have very different melting points.
  • the method according to the invention advantageously occurs no melting of the respective pipe material and thus no alloying between the tube and the layer material. It also forms below the Layer material no heat affected zone. Finally there is the possibility of explosive plating on simple Way to apply multilayer layers without the individual Coating materials in melt-metallurgical interaction to step.
  • the layer material can be used on the entire inner surface of the pipe can also be applied selectively. In both cases, it should be noted that the gun barrel before the coating process to the appropriate wall thickness of the material to be applied Layer material must be adapted, i.e. the The pipe section to be coated must have a diameter, the caliber diameter plus twice the wall thickness corresponds to the layer material to be applied.
  • the sheet or foil-shaped consisting of the layer material Provide part with expressions after insertion of the part in the gun barrel as a spacer serve.
  • the side of the pipe surface facing away from the layer material existing sheet or film-shaped part a cylindrical Body arranged such that between the cylindrical body and the sheet or foil Part of an intermediate space remains, in which preferably a powdered explosive is introduced.
  • FIGS. 1-4 1 denotes a weapon barrel, which in a partial area 2 has a refractory metal, e.g. Niobium to be coated.
  • a refractory metal e.g. Niobium to be coated.
  • Section 2 has the weapon barrel 1 an oversize 3 compared to the caliber diameter.
  • the inner tube surface 4 is cleaned so that it is dirty and is fat free.
  • the weapon barrel 1 is first placed in a support barrel 5 arranged to widen the gun barrel, particularly in the case of thin-walled gun barrels to prevent in the plating process (Fig. 2). Then, if necessary gap 5 remaining between the support tube 5 and the weapon barrel 1, e.g. With Concrete, epoxy resin or water, which is then cooled to ice, filled out.
  • a tubular body 6 is then introduced into the weapon barrel 1 (FIG. 2), on which both Explosive 7 as well as a sheet-metal part consisting of the layer material (Tin tube) 8 are arranged.
  • the sheet-shaped part 8 is supported by spacers 9 on the pipe surface 4, so that between the sheet-metal part 8 and the pipe surface 4 a gap-shaped space 10 remains.
  • the length 11 of the sheet-shaped part 8 is due to the inlet and Leakage processes of the detonation front slightly larger than the length 12 of the plate to be plated Subarea 2.
  • the explosive 7 is attached to the explosive arranged igniter 13 ignited, such that there is a over the entire circumference forms a uniform detonation front, which spreads in the direction of the tube longitudinal axis 14 and over the entire length 11 of the sheet-like material consisting of the layer material Part 8 runs.
  • the layer material is strongly accelerated on the detonation front and strikes the inner tube surface 4 so that the materials are cold welded together.
  • Has a precise examination of the binding level between the two materials also show that this area is wavy and therefore opposite one straight binding plane is greater, which the adhesion of the layer material to the surface of the Gun barrel still improved.
  • the plating process is essentially determined by the type and amount of explosive 7 (Speed of detonation, pressure development etc.), the type and wall thickness of the Layer material existing sheet-shaped part 8 and the Distance 15 between the layer material and the pipe surface 4 determined.
  • the invention is of course not based on the above described embodiment limited.
  • the gun barrel 1 before the coating process be evacuated

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Powder Metallurgy (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating By Spraying Or Casting (AREA)
EP00107747A 1999-06-09 2000-04-11 Procédé pour revêtir la surface interne d'un tube de canon Withdrawn EP1059502A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19926246A DE19926246A1 (de) 1999-06-09 1999-06-09 Verfahren zur Innenbeschichtung eines Waffenrohres
DE19926246 1999-06-09

Publications (2)

Publication Number Publication Date
EP1059502A2 true EP1059502A2 (fr) 2000-12-13
EP1059502A3 EP1059502A3 (fr) 2001-08-22

Family

ID=7910651

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00107747A Withdrawn EP1059502A3 (fr) 1999-06-09 2000-04-11 Procédé pour revêtir la surface interne d'un tube de canon

Country Status (3)

Country Link
US (1) US6352740B1 (fr)
EP (1) EP1059502A3 (fr)
DE (1) DE19926246A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2400253A3 (fr) * 2010-06-25 2014-05-28 Pacific Aerospace & Electronics, Incorporated Armes à feu et éléments des armes à feu comprennant des matériaux multi-métal
US8904695B2 (en) 2010-06-25 2014-12-09 Pacific Aerospace & Electronics, Inc. Methods of manufacturing firearms and firearms components comprising bonded multi-metallic materials

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6594936B1 (en) * 2002-10-03 2003-07-22 Gary Sniezak Method for lining a gun barrel
US7182014B2 (en) * 2002-10-16 2007-02-27 Rescue Academy Inc. Gun barrel for launching projectiles
DE102005018618A1 (de) * 2005-04-21 2006-10-26 Rheinmetall Waffe Munition Gmbh Waffenrohr und Verfahren zur Beschichtung der inneren Oberfläche des Waffenrohres
RU2479672C1 (ru) * 2011-11-11 2013-04-20 Федеральное государственное военное образовательное учреждение высшего профессионального образования "Военный учебно-научный центр Военно-морского Флота "Военно-морская академия имени Адмирала Флота Советского Союза Н.Г. Кузнецова" Способ формирования покрытия внутренней поверхности ствола огнестрельного оружия
US9279633B2 (en) 2014-01-21 2016-03-08 Richard R. Hayes Multi-caliber weapon
US9546837B1 (en) 2015-10-09 2017-01-17 Bh5773 Ltd Advanced gun barrel
RU2706995C1 (ru) * 2019-06-24 2019-11-21 Общество с ограниченной ответственностью "Уральский инженерный центр" (ООО "УИЦ") Способ очистки, восстановления и упрочнения внутренней цилиндрической поверхности нарезного ствола оружия и устройство для его осуществления

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3261121A (en) * 1961-10-13 1966-07-19 Joseph R Eves Gun barrel with explosively welded liner
GR79748B (fr) * 1982-12-23 1984-10-31 Ver Edelstahlwerke Ag
US4701348A (en) * 1986-11-20 1987-10-20 Glenco Manufacturing, Inc. Method of coating the threads of a fastener
DE3704774C1 (en) * 1987-02-16 1988-07-07 Rheinmetall Gmbh Barrel liner for a tube weapon (weapon with a barrel)
DE3907087A1 (de) * 1989-03-04 1990-09-13 Rheinmetall Gmbh Hochdruckbehaelter
DE19736028A1 (de) * 1997-08-20 1999-02-25 Rheinmetall W & M Gmbh Verfahren zur Innenbeschichtung eines Metallrohres und Vorrichtung zur Durchführung des Verfahrens

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2400253A3 (fr) * 2010-06-25 2014-05-28 Pacific Aerospace & Electronics, Incorporated Armes à feu et éléments des armes à feu comprennant des matériaux multi-métal
US8904695B2 (en) 2010-06-25 2014-12-09 Pacific Aerospace & Electronics, Inc. Methods of manufacturing firearms and firearms components comprising bonded multi-metallic materials

Also Published As

Publication number Publication date
DE19926246A1 (de) 2000-12-14
EP1059502A3 (fr) 2001-08-22
US6352740B1 (en) 2002-03-05

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